Description
The cartographic layer distributed by levels the water heights in the low areas for a 100-year reference sea level (ZBNM100). The mapping of these water levels is carried out at national level by distinguishing six water level classes:
* water level between 5.5m and 13.5m
* water level between 4.5m and 5.5m
* water level between 3.5m and 4.5m
* water level between 2.5m and 3.5m
* water level between 1.5m and 2.5m
* water level between 0m and 1.5m .
Water heights are given by class of 1m except for the first and last class.
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Tags
- hauteurs-deau-vulnerabilite-aux-risques-littoraux-submersions-marines